JRP 02-06

Partners

CEA

ULG

Contact

Prof. Jean F. Desreux
University of Liège - Coordination and Radiochemistry - Sart Tilman B16 - 4000 Liège - Belgium
Phone + 32 (0) 4 366 35 01
E-mail e-mail

Nuclear magnetic resonance studies on actinide ions: relaxivity and spectroscopy

Status

 
Terminated - Planned from January 2005 till July 2006

Goals

This joint research project combines theoretical studies with nuclear magnetic resonance spectroscopy and dispersion of relaxation times, to:

  • improve the definition of the ground states of actinide ions;
  • measure relaxation times of Cm(III), NpO2+ and PuO22+ at high fields;
  • perform a conformational analysis of Cm(III) complexes by NMR;
  • study cation-cation interactions by NMR and EXAFS.

The NMRD-technique ('Nuclear Magnetic Relaxation Dispersion') yields information on: the complexation of various actinide ions, the formation of polymetallic cation-cation entities and the solution behavior of these species.

Expected results

The results of this joint research project contribute to the revelation of the exact ground state nature of actinide ions in solution (at room temperature). Besides, information on the magnetic properties and the dynamic behaviour of actinide ions in water will also be obtained (feasibility of NMR spectroscopy of Cm compounds, relaxivity at high magnetic fields, cation-cation interactions).

Reports